1532815423 has 2 divisors, whose sum is σ = 1532815424. Its totient is φ = 1532815422.

The previous prime is 1532815397. The next prime is 1532815439. The reversal of 1532815423 is 3245182351.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1532815423 - 2²⁹ = 995944511 is a prime.

It is a super-3 number, since 3×1532815423³ (a number of 29 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1532815223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 766407711 + 766407712.

It is an arithmetic number, because the mean of its divisors is an integer number (766407712).

Almost surely, 2^1532815423 is an apocalyptic number.

1532815423 is a deficient number, since it is larger than the sum of its proper divisors (1).

1532815423 is an equidigital number, since it uses as much as digits as its factorization.

1532815423 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 28800, while the sum is 34.

The square root of 1532815423 is about 39151.1867380799. The cubic root of 1532815423 is about 1153.0017165497.

Adding to 1532815423 its reverse (3245182351), we get a palindrome (4777997774).

The spelling of 1532815423 in words is "one billion, five hundred thirty-two million, eight hundred fifteen thousand, four hundred twenty-three".